Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 3, Problem 15P

(a)

Summary Introduction

Interpretation: The p-chart is to be constructed.

Concept Introduction:

The monitoring of the nonconforming units in sample in statistical quality control is done by the representation of the p-chart.

(b)

Summary Introduction

Interpretation: The waiting time of the patients is to be concluded.

Concept Introduction:

The monitoring of the nonconforming units in sample in statistical quality control is done by the representation of the p-chart.

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The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.                                                                                                                                                        Day 1 2 3 4 5 6 7 8 9 10 Defectives 7 9 9 11 7 8 0 11 13 2   The upper and lower 3​-sigma control chart limits​ are: UCLp ​= ​(enter your response as a number between 0 and​ 1, rounded to three decimal​ places). LCLp ​=    ​(enter your response as a number between 0 and​ 1, rounded to three decimal​ places).
The overall average on a process you are attempting to monitor is 60.0 units. The process population standard deviation is 1.72. Sample size is given to be 4. Part 2 ​a) Determine the ​3-sigma x​-chart control limits.   Upper Control Limit ​(UCLx​)=enter your response here units ​(round your response to two decimal​ places). Part 3 Lower Control Limit ​(LCLx​)=enter your response here units ​(round your response to two decimal​ places). Part 4 ​b) Now determine the ​2-sigma x​-chart control limits.   Upper Control Limit ​(UCLx​)=enter your response here units ​(round your response to two decimal​ places). Part 5 Lower Control Limit ​(LCLx​)=enter your response here units ​(round your response to two decimal​ places). Part 6 How do the control limits​ change?     A. The control limits are tighter for the ​3-sigma x​-chart than for the ​2-sigma x​-chart.   B. The control limits for the 2​-sigma x​-chart and for the ​3-sigma x​-chart are the same.   C. The control limits…
The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100. LCLp Day Defectives = 1 5 2 7 3 7 4 9 5 5 6 6 a) The upper and lower 3-sigma control chart limits are: UCL = 0.127 (enter your response as a number between 0 and 1, rounded to three decimal places). (enter your response as a number between 0 and 1, rounded to three decimal places). 7 1 8 6 9 10 10 1
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